J.K. Lasser's Small Business Taxes 2018

CHAPTER 30 Filing Tax Returns and Paying Taxes

1. Income Tax Deadlines and Extensions
2. Online Filing of Business Income Tax Returns
3. Estimated Taxes
4. Making Tax Payments
5. Filing Other Business Returns
6. Using Tax Professionals

Alert

At the time this book was completed, Congress was considering important tax changes that could affect 2017 tax returns and planning for 2018. Check the online Supplement in February 2018 at www.jklasser.com or www.barbaraweltman.com to see what changes have been enacted and when they are effective.

It's one of the facts of a business owner's life to file returns and pay taxes. The filing deadlines and tax payment rules for businesses and their owners may be different from those for individuals. Making sure you comply with filing and payment requirements is essential for avoiding unnecessary penalties and interest.

For more information about the electronic federal tax payment system, see IRS Publication 966, Electronic Federal Tax Payment System.

Income Tax Deadlines and Extensions

The date by which your business return must be filed depends on your type of entity and tax year. The information in Table 30.1 applies for 2017 returns to businesses reporting on a calendar-year basis.

Table 30.1 Filing Deadlines

Type of Entity*	Income Tax Return	Return Due Date
Sole proprietorship	Schedule C (or C-EZ) of Form 1040	April 15
Partnership	Form 1065	March 15
Limited liability company	Form 1065	March 15
S corporation	Form 1120S	March 15 ...